<?php
namespace TYPO3\CMS\Frontend\ContentObject;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

/**
 * Contains LOAD_REGISTER class object.
 *
 * @author Xavier Perseguers <typo3@perseguers.ch>
 * @author Steffen Kamper <steffen@typo3.org>
 */
class LoadRegisterContentObject extends AbstractContentObject {

	/**
	 * Rendering the cObject, LOAD_REGISTER
	 * NOTICE: This cObject does NOT return any content since it just sets internal data based on the TypoScript properties.
	 *
	 * @param array $conf Array of TypoScript properties
	 * @return string Empty string (the cObject only sets internal data!)
	 */
	public function render($conf = array()) {
		array_push($GLOBALS['TSFE']->registerStack, $GLOBALS['TSFE']->register);
		if (is_array($conf)) {
			$isExecuted = array();
			foreach ($conf as $theKey => $theValue) {
				$register = rtrim($theKey, '.');
				if (!$isExecuted[$register]) {
					$registerProperties = $register . '.';
					if (isset($conf[$register]) && isset($conf[$registerProperties])) {
						$theValue = $this->cObj->stdWrap($conf[$register], $conf[$registerProperties]);
					} elseif (isset($conf[$registerProperties])) {
						$theValue = $this->cObj->stdWrap('', $conf[$registerProperties]);
					}
					$GLOBALS['TSFE']->register[$register] = $theValue;
					$isExecuted[$register] = TRUE;
				}
			}
		}
		return '';
	}

}
